1. Low levels of certain hormones
2. An angry, anxious, or depressed mood, excessive stress
3. Diseases, surgeries, medications (such as antidepressants, heart diseases, diabetes, thyroid problems, kidney-liver issues, pain…)
4. Sexual problems (such as erectile dysfunction, premature ejaculation, size and volume insufficiencies, performance anxiety)
5. Partner’s sexual problems (such as vaginismus, low sexual desire)
6. Inability to share sexual desires, thoughts, or sexual problems with a partner
7. A routine sex life lacking excitement, lack of time
8. Relationship problems, arguments, tensions
9. Misinformation about sex, unrealistic expectations
10. Poor diet, inactivity, heavy smoking and alcohol use